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a9de836c2b
gcc/libgomp/testsuite
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Thomas Schwinge a9de836c2b Restore 'libgomp.oacc-c-c++-common/nvptx-sese-1.c' SESE regions checking [PR107195, PR107344] 
That is, adjust for optimization introduced with recent
commit r13-3217-gc4d15dddf6b9eacb36f535807ad2ee364af46e04
"[PR107195] Set range to zero when nonzero mask is 0", where GCC now
understands that after 'r *= 2;', 'r & 1' will never hold here, and thus
transforms/optimizes/"disturbs" the original code such that GCC/nvptx's later
"Neuter whole SESE regions" optimization no longer is applicable to it:

    UNSUPPORTED: libgomp.oacc-c/../libgomp.oacc-c-c++-common/nvptx-sese-1.c -DACC_DEVICE_TYPE_nvidia=1 -DACC_MEM_SHARED=0 -foffload=nvptx-none  -O0
    PASS: libgomp.oacc-c/../libgomp.oacc-c-c++-common/nvptx-sese-1.c -DACC_DEVICE_TYPE_nvidia=1 -DACC_MEM_SHARED=0 -foffload=nvptx-none  -O2  (test for excess errors)
    PASS: libgomp.oacc-c/../libgomp.oacc-c-c++-common/nvptx-sese-1.c -DACC_DEVICE_TYPE_nvidia=1 -DACC_MEM_SHARED=0 -foffload=nvptx-none  -O2  execution test
    [-PASS:-]{+FAIL:+} libgomp.oacc-c/../libgomp.oacc-c-c++-common/nvptx-sese-1.c -DACC_DEVICE_TYPE_nvidia=1 -DACC_MEM_SHARED=0 -foffload=nvptx-none  -O2   scan-nvptx-none-offload-rtl-dump mach "SESE regions:.* [0-9]+{[0-9]+->[0-9]+(\\.[0-9]+)+}"

Same for C++.

It's unclear to me if this is an actual "problem", which optimization is "more
important", so I've filed PR107344 "GCC/nvptx SESE region optimization" to
capture this question, and here restore what we intend to be testing (to my
understanding) in 'libgomp.oacc-c-c++-common/nvptx-sese-1.c'.

	PR tree-optimization/107195
	PR target/107344
	libgomp/
	* testsuite/libgomp.oacc-c-c++-common/nvptx-sese-1.c: Restore SESE
	regions checking.
2022-10-21 11:27:27 +02:00
..
config Update copyright years. 2022-01-03 10:42:10 +01:00
lib libgomp: Add offload_device_gcn check, add requires-4a.c test 2022-10-20 12:58:52 +02:00
libgomp.c Fix nvptx-specific '-foffload-options' syntax in 'libgomp.c/reverse-offload-sm30.c' 2022-10-17 13:50:57 +02:00
libgomp.c-c++-common libgomp: Add offload_device_gcn check, add requires-4a.c test 2022-10-20 12:58:52 +02:00
libgomp.c++ OpenMP, C++: Add template support for the has_device_addr clause. 2022-05-16 01:02:50 -07:00
libgomp.fortran libgomp: Add Fortran testcases for omp_in_explicit_task 2022-10-13 20:38:27 +02:00
libgomp.graphite Update copyright years. 2022-01-03 10:42:10 +01:00
libgomp.oacc-c [testsuite] Unset 'offload_target' after use 2020-07-24 14:00:43 +02:00
libgomp.oacc-c-c++-common Restore 'libgomp.oacc-c-c++-common/nvptx-sese-1.c' SESE regions checking [PR107195, PR107344] 2022-10-21 11:27:27 +02:00
libgomp.oacc-c++ OpenMP/OpenACC struct sibling list gimplification extension and rework 2022-09-14 13:59:55 +00:00
libgomp.oacc-fortran Fix up 'libgomp.oacc-fortran/print-1.f90' GCN offloading compilation [PR104717] 2022-04-28 15:15:29 +02:00
libgomp-site-extra.exp.in libgomp/test: Remove a build sysroot fix regression 2020-04-06 23:32:45 +01:00
libgomp-test-support.exp.in libgomp nvptx plugin: Remove '--with-cuda-driver=[...]' etc. configuration option 2022-06-10 17:08:57 +02:00
Makefile.am libgomp/test: Remove a build sysroot fix regression 2020-04-06 23:32:45 +01:00
Makefile.in libgomp nvptx plugin: Remove '--with-cuda-driver=[...]' etc. configuration option 2022-06-10 17:08:57 +02:00